Question

the radius of circle whose area is 49pie cm square is _cm.​

Answer 1

since, area of circle = πr²= 49π so, radius = ✓49=7cm

Answer 2

Answer:

14 pie cm

Step-by-step explanation:

SOLUTION

14π cm

Let the radius be r cm.

We know:

Area of a circle

Thus, we have;

πr 2 = 49π

⇒ r 2 = 49

⇒

⇒ r = 7

Now,

Circumference of the circle = 2π

=

= 14π cm